Add indexes for improved query performance

migrations/2025-12-17-230000_add_indexes/down.sql

@@ -0,0 +1,9 @@
+-- Rollback indexes
+
+DROP INDEX IF EXISTS idx_favorites_userid;
+DROP INDEX IF EXISTS idx_favorites_path;
+DROP INDEX IF EXISTS idx_tags_name;
+DROP INDEX IF EXISTS idx_tagged_photo_photo_name;
+DROP INDEX IF EXISTS idx_tagged_photo_tag_id;
+DROP INDEX IF EXISTS idx_image_exif_camera;
+DROP INDEX IF EXISTS idx_image_exif_gps;